[Antennas] Effective ways to use lots of land, trees and wire?

Sat Jan 17 11:28:53 EST 2009

You might consider the 3-6-9 wire beam for 40 meters. It is 3 elements.
33' director, 36' driven element and a 39' reflector. I'm not sure of
optimal spacing...perhaps about .1 wavelength.
Modeling has shown me that 5 of them at 72 degrees from each other does a
good job of coverning the compass with <3db drop between adjacent
directions. Yes, that's only one band. I attempted to add other bands (in
modeling) to the array but it seems there was too much interaction when they
were in the same vertically defined area.
I'm uncertain if I still have that file. If you are interested I can look
for it and perhaps provide other information.
Possibly several similar arrays could be set up at some distance from each
other for other bands. Modeling might help determine the possible
interaction between the arrays.
Such a setup would require a lot of remote switch boxes and quite a bit of
coax.
Regards,
Dick - KA5KKT